Measurement of geometrically necessary dislocation density with high resolution electron backscatter diffraction: Effects of detector binning and step size

作者: J. Jiang , T.B. Britton , A.J. Wilkinson

DOI: 10.1016/J.ULTRAMIC.2012.11.003

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摘要: Recent advances using cross-correlation analysis of full resolution high quality electron backscatter diffraction (EBSD) patterns have provided a method for quantitatively mapping the stored dislocation density at high spatial resolution. Larger areas could be mapped with image binning or coarser step sizes. We have studied the effects of image binning and step size on the recovery of GND density. Our results suggest that:(i) the measured lower bound GND density noise floor broadly agrees with Wilkinson and Randman's 2009 prediction …

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